Washing machine



E. R. COOPER ETAL Jan; 11 1921.

WASHING MACHINE 7 Filed Sept. 27, 1924 2 Sheets-Sheet 1 'IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIll NVENTOR. Eon m1) 7?. Jews.

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E. R. COOPER ET AL WASHING MACHINE 2 Sheets-Sh t 2 llllll 4 INVENTOR.

flmsn'r L; 804 Bf & W H R D R m Patented Jan. 11, 1927.

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EDWARD R. COOPER, 01* SAN LEAIQ'DRO, A1\TD ALBERT LARSON, F PIEDMONT, CALI- FORNIA, ASSIGNORS OF ONE-THIRD TO LYDIA FRANCES LARSON, OF OAKLAND,

WASHING MACHINE.

Application filed September 27, 1924. Serial No. 740.270.

Our invention is an improved washing machine, in which the washing cup is so designed that it will tend to disentangle the clothes in the tub, and also create a constant movement of the clothes and the water in the tub.

Further objects and advantages will be more particularly pointed out in the follow ing detailed description.

1n the annexed drawing in which my invention is illustrated, we have shown the preferred form, but it may also be embodied in other forms, and in this application we desire to cover our invention in whatever form it may be used.

Figure 1 is a fragmentary side view of our washing machine in position in a tub.

Figure 2 is a plan view of the washing cup. 355 Figure 3 is an end view of the same;

Figure 4 is a bottom plan view of the same.

Figure 5 is a sectional view taken on the line 5-5 of Figure 4:.

Figure 6 is a side elevation of the wash in machine with parts broken awayto show the construction.

Figure 7 is a sectional view taken on the line 7-7 of Figure Figure 8 is a fragmentary transverse sectional view of the wringer drive mechanism. Figure 9 is a fragmentary plan view of the adjustable block on the washing machine mounting plate.

Referring more particularly to the drawing, the motor 1 drives a shaft 2 through suitable gearing 3. An arm 4 is secured to the shaft 2, and a rod 5 is secured to said arm. A washing cup 6 being mounted at the lower end of the rod 5. The rod 5 extends through an oscillating bearing 7 which is suitably mounted on the base 8 of the washing machine. Thus it will be seen that the rotation of the arm a will impart both a vertical and horizontal motion to the cup 6. It has beenfound that in machines of this character an ordinary cup will merely ound the clothes downwardly on the bottom of the tub, and thus obviate the cleansing purpose; further, no particular agitation of the water is accomplished. Our cup is particularly adapted to accomplish these objects.

In describing the cup,

we will designate the surface 9 as the front face and the surface 10 as therear face. The one end 11 is formed into a convex shoulder and anabrupt concave curvature 12 occurs on the face 9, the object being to prevent the clothes from passing around the end 11. The other end 13 has a. concave curvature so that the clothes may readily pass thereo.verthat is the transverse motion of the cup will cause the clothes to constant-1y pass over one side of the cup only, i. e., the side 13. The surface 9 is concave and dueto the curvature 12 a movement of the water is created around the end 13 thus materially assisting the movement of the clothes.

The rear face 10 is also concave and the cup in its movement through the Water causes a swirl or a vortex adjacent said surface, thus thoroughly agitating the water, and also assisting in moving the clothes around the end of the cup. The cup is hollow and is provided with a pair of vertical walls 14L and 15, thus dividing the cup into a plurality of chambers. The central chamber has an opening 16 in the top thereof, which extends into the hollow rod 5, and a ball 17 rests over said opening to act as a check-that is, as the cup drops into the water the air will be forced through the opening 16 raising the ball 17, thus creating a partial vacuum in the cup, and assisting in holding the clothes, The other chambers formed within the cup have no openings therein, and merely act to force the air through the clothes as the cup drops downwardly upon them.

The operation of the cup is to drop clownwardly upon the clothes causing a partial vacuum in the central chamber which picks said clothes up, and carries them forwardly with the motion of the cup, said forward movement of the cup causing an agitation in the water, and a movement of the clothes around one end of the cup. Thus it will be seen that the clothes are not entangled or packed in the tub, but are constantly agitated and therefore thoroughly washed.

A gear 18 is mounted on the shaft 2 and gear 19 meshes with said gear to drive a shaft 20, which shaft extends into a gear housing 21. A bevelled gear 22 is slidably keyed to the shaftand a second bevelled gear 23 is spaced from the gear 22 and secured thereto by a hollow sleeve 24. A shaft shaft is journaled in the housing 21 at its lower end. and in a bracket 30 at the upper end.

A second bevelled gear 31 is secured to the shaft 29 and meshes with a gear 32 on the end of one ofthe wringer rollers 33. The second roller 34 contacting with the first roller in the usual manner of wringers. The

end frame 35 is provided with a pair of brackets 36 and 37 which are journaled on the shaft 29. Thus it will be seen that the wringer may be readily rotated around said shaft into any desired position. A pin 39. extends into suitable notches in the bracket 36 to hold the wringer in any desired position. The bed plate 8 extends across the top of the tubs as is usual in a portable washing machine, andto compensate for the various widths of said tub a bracket &0 is secured to the bottom thereof by means of a wing nut ll which nut extends through. a slot 42 in said bracket, thus enabling the bracket to be slid transversely along the bed plate to bear against the side of the tub. At the'other end a convex bracket 43 is provided. The shaft 25 may be shifted in any desirable way such as a slidable finger 44 actuated by a suitable handle 45.

Having described our invention we claim:

1. In a washing machine, a washing cup, means to reciprocate said cup, said cap being formed with a shoulder at one end thereof, the other end having a concave curvature.

2. In a washing machine, a hollow washing cup, means to reciprocate said cup, said cup being formed with, a shoulder at one end thereof, the other end having a concave curvature, and the rear surface of said cup having a concave curvature.

3. In a washing machine, a hollow washing cup, means to reciprocate said cap, said cup being formed with a shoulder at one end thereof, the other end having a concave curvature, the rear surface of said cup having a concave curvature, and an abrupt concave curvature on the front face of said cup adjacent said shoulder.

l. In a washing machine, a hollow washing cup, means to reciprocate said cup, said cup being formed with a. shoulder at one end thereof, the other end havinga concave curvature, a plurality of chambers in said cup, a hollow tube secured to said cup by means of which it is reciprocated, said cup having a port extending from one of said chambers to said tube.

In testimony whereof we affix our signatures.

EDWARD R. ooorna. ALBERT LARSON. 

